Identification of Eight Synthetic Cannabinoids, Including 5F AKB48 in Seized Herbal Products Using DART TOF MS and LC QTOF MS as 5F AKB 48 Metabolism, CB1 cannabinoid receptor binding and in vivo activity of synthetic cannabinoid 5F AKB48: Implications for toxicity ScienceDirect Competition curves of specific [3H] CP 55940 binding by AKB48 and Download Scientific Diagram Metabolism, CB1 cannabinoid receptor binding and in vivo activity of synthetic cannabinoid 5F AKB48: Implications for toxicity ScienceDirect